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Ecology of aquatic habitats associated with stream margins

Creator:: Moore, Kelly M. S.
Abstract:: The morphology and ecological importance of habitats associated with the margin of third-order stream channels in the Oregon Cascades were studied in streams in three different riparian types: 450-year-old conifers, 40-year-old alder, and an open, herbaceous-dominated clearcut. Margins, backwaters, and side channels in streams create important habitat for fry of...
Resource Type:: Masters Thesis
Full Text:: Table Page 11.1. Watershed characteristics of the study streams. 9 11.2. Habitat area in 100-m reaches

University mathematics students' perception of proof and its relationship to achievement

Creator:: Lewis, S. M.
Abstract:: The focus of this study was junior-level mathematics students' perception of proof and its relationship to achievement. The following problems were investigated: 1) nature of perception of proof of undergraduate mathematics students who have enrolled in Advanced Calculus; 2) relationship between students' perception of selected aspects of proof and their...
Resource Type:: Dissertation
Full Text:: its relationship to achievement MCI ABSTRACT OF THE THESIS OF S. M. Lewis for the degree of Doctor

Evaluation of responses to selection and association among specific traits in three populations of swine

Creator:: Smith, Edward J. M. S.
Abstract:: Oregon State University swine herd records of 456 litters farrowed between 1962-73 in three populations were analyzed on a generation basis to compare changes in performance of a Composite population to parental Berkshire and Yorkshire breeds. Analysis was performed in six discrete and overlapping generations on backfat thickness, loin eye...
Resource Type:: Masters Thesis
Full Text:: recombination for developing new pig breeds in the United States has been most widely used by the U. S

Further Studies on Corn Earworm: A: Protein Change in Corn Seed and Yields of Corn from that Seed in Response to Corn Earworm Damage

Creator:: White, S. M. and Scott, D. R.
Resource Type:: Conference Proceeding
Full Text:: DAMAGE S. M. White, D. R. Scott University of Idaho, Moscow, ID 83843 Protein content in corn kernels

Continuing Studies on the Corn Earworm

Creator:: Akkawi, M., White, S., and Scott, D. R.
Resource Type:: Conference Proceeding
Full Text:: the treatments and the check. . CONTINUING STUDIES ON THE CORN EARWORM M. Akkawi, S. White and D

Quasi-Geostrophic Topographically Generated Mean Flow over the Continental Margin

Creator:: Samelson, Roger M. and Allen, J. S.
Abstract:: Observations of oppositely directed, monthly mean alongshore currents and wind stress over the continental margin off the Pacific coast of North America motivate the theoretical examination of mean flow generation by topographic lee-wave drag. We formulate a barotropic model for wind-forced shelf-slope flow over variable topography. Our central objective is...
Resource Type:: Article

Knowledge sources for an intelligent algebra tutor

Creator:: Bregar, William S., Farley, Arthur M., and Bayley, Garland
Abstract:: The focus of this paper is on the underlying knowledge base for an intelligent tutorial system for high school algebra problems. We present a model of problem solving flexible enough to account for a variety of problem solving behaviors and general enough to allow new problem domains to be defined...
Resource Type:: Technical Report
Full Text:: AN INTELLIGENT ALGEBRA TUTOR William S. Bregar Department of Computer Science Oregon State

Intraseasonal Oscillations in Sea Level along the West Coast of the Americas

Creator:: Spillane, M. C., Enfield, D. B., and Allen, J. S.
Abstract:: Hourly observations of coastal sea level at stations from Peru to British Columbia are analyzed for low-frequency content. A space-time contour plot of sea level, from four years of data during the 1971–75 period, shows the meridional structure of the seasonal cycle and interannual variability associated with the 1972–73 El...
Resource Type:: Article

Analysis of discontinuities in quantum waveguide structures

Creator:: Weisshaar, A., Lary, J., Goodnick, S. M., and Tripathi, V. K.
Abstract:: We have used the modal expansion of the wave function in the discontinuity region based on the superposition principle together with a mode-matching technique to investigate the transmission characteristics of semiconductor quantum wire structures with discontinuities. Our calculations compare quite well with published results for the theoretical transmission coefficient and...
Resource Type:: Article

Herbicides in runoff from agricultural watersheds in a high-winter-rainfall zone

Creator:: Hickman, John S., Harward, M. E., and Montgomery, Marvin L.
Resource Type:: Technical Report
Full Text:: Herbicides in Runoff From Agricultural Watershed s in a High-Winter

ScholarsArchive@OSU

Ecology of aquatic habitats associated with stream margins

University mathematics students' perception of proof and its relationship to achievement

Evaluation of responses to selection and association among specific traits in three populations of swine

Further Studies on Corn Earworm: A: Protein Change in Corn Seed and Yields of Corn from that Seed in Response to Corn Earworm Damage

Continuing Studies on the Corn Earworm

Quasi-Geostrophic Topographically Generated Mean Flow over the Continental Margin

Knowledge sources for an intelligent algebra tutor

Intraseasonal Oscillations in Sea Level along the West Coast of the Americas

Analysis of discontinuities in quantum waveguide structures

Herbicides in runoff from agricultural watersheds in a high-winter-rainfall zone

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